Question 1: A material that causes a wave to bounce off it is called the. Answer : Reflection
Question 2: A material that takes in a wave when the wave hits is called the. Answer: Absorber
The atomic radius increases as you would go down a particular group on the periodic table of elements. This is because along with a greater number of protons, there would also be electrons as well, and thus the need of electron shells surrounding the atom would also be required, to compensate for the more electrons, as according to the bohr model, each shell contains 8 electrons in its electron shell. Thus the distance from the nucleus to the outermost shell increases, the atomic radius.
Answer:
The answer is option b.
Explanation:
Amplitude is the distance apart each wave is.
An element is a form of matter that is made of only one type of atom
Protons
Explanation: the atomic number is the same as the number of protons
